Compressor unit



June 9, l 925.

w. D. MERCER COMPRESSOR UNIT Filed June 23, 1924 Wzfljdm 12 MercerA-orne z/s Patented June 9, 1925,

UNiTE WILLIAM D. MERCER, F DETROIT, MICHIGAN, ASSIGNOR, BY HIIESHEASSIGNMENTS, TO KELVINATOB CORPORATION, OF DETROIT, MICHIGAN, ACORPOMTION OF MICHIGAN.

COMPRESSOR UNIT.

Application filed June 23, 1924. Seriai No. 521,711.

To all whom. it may concern.

Be it known that 1, WILLIAM D. Manors,

-a citizen of the United States of America, and a resident of Detroit,in the county of Vvayne and State of Michigan, have invented certain newand useful Imprm'ements in Compressor Units of which the following is afull, clear, and exact description.

The adaptation of mechanical rcfrigerating systems to smell unitssuitable for installation in stores and houses has necessiteted theintroduction into the systems heretoforeused of a large number ofimprovements particularly designed to decrease the attention required bythe refrigerating system and to facilitate maintenance and operationthereof. My invention provides a fly-wheel an particularly suitable foruse on the compressor unit of such an installation and reflective toequalize the load demand on the prime mover and also set up a current ofair to incrcasc the capacity of the condenser. in the drawingsaccompanying this specification and forming a part thereof I have shown,for purposes of illustration, certain forms which my invention mayassume. In these drawings:

Figure 1 is an end elevation of one form of my invention,

Figure 2 is a sectional view taken on the line 2-2 oi Figure 1,

Figures 3 and 4 are simiiar view: a second embodiment, wl'iiie Figure 5is a section on the line 5---5 of Figure 4.

In order to equalize the loud imposed upon the prime mover hy thecompressor it is desirable to provide upon the prime mo gcr a suitableily-whc-.:l and in order to increase the circulation oi air through thecondenser coil of the compressor unit this i'lywvheel is preferablyprovided with means adapted to act as a fun to force air against thecondenser coii.

In the (:onsti'wrtiofl shown in lfiigures l and '2 the liywheei 4!?comprises a rim and a wei) 51 formed from a singie piece of sheet metaland secured by means of suitable rivets 52 to a huh 53 securedin anysium'mg suitable manner to the prime mover shaft 18.-

This web 51 is provided with a plurality of upstanding pistes 54 strucktherefrom and leaving in the web :31 corresponding apertures 55 throughwhich the air engaged by the plates 54 iu "creed into contact with thecondenser coil.

In the ily-wheei 49 shown in Figures 3 and 4 the rim 5 and web 57 areagain formed from a single piece of metal and again secured by means ofsuitable rivets 58 to a hub 59 secured in any suitable manner to theprime n'iUYfil shaft 18 but in this construction the web 57 is providedwith a plurality of apertures (50 in each of which is mounted a plate(31 standing at an angle to the plane of the weh 57 and secured inposition by means of a plurality of lugs 62 formed integral with theplate (31, bent to contact the web when the plate (31 is in the desiredposition with the two edges of the plate iii projecting on oppositefaces of the web 57, and secured, to the well :37 in any suitable manneras by spot welding.

From the above description it will he pi-ircnt that l have provided. animproved means For equalizing: the load upon the prime mover andsimultaneously causing circulation oi air. At the same time, it will heobvious to those siiiiird in the art that the portion or cmiuuliments ofmy inveniion her n shown and iii 'rrihc-rl may he ranged and. mod Soil\vitl'iout de- -cm the i'ro ic of my invention or 'ihe ailviinlagcs the"'21 and it will therefore he uiulcrsloorl til: this dis rlosurc isillustrative only and that. my in vontion is not limited thereto.

l claim:

A ilvivheci an roinprising a rim, a hub, :i. wish C(HllHifiiillfl saidrim and said huh and provii'lml with :i plureiity of apertureslllci'ctin'ougiu and a plurality of blades each positioned wit." in sa fapertures and exlending: at an uiigim to th plane of said web with itstwo i 'i'tii wl .s'projecting on opand means securing posiie sides oisaid we each such iateral nigh-lo sziid Wei).

In testimony whcrcoi'. Ti h'ereuntoeilix my signature WILLIAM 1)..MERCER

